Remote Senior Fullstack Engineer

About AstraAstra is building mission-critical infrastructure for moving money at scale. Our platform processes billions in annual transaction volume with 99.9%+ uptime, powering real-time transfers, bank debits, card disbursements, and complex financial compliance systems. We provide APIs and automation tools that enable businesses to move money programmatically while maintaining strict regulatory requirements.The RoleWe're looking for a Senior Fullstack Engineer who is primarily frontend-focused but comfortable contributing across the stack. You'll own the React and TypeScript surfaces our clients and internal teams depend on, while also being able to build and extend the Python APIs that support them. You'll work closely with our engineering team to ship features across our payments dashboard, internal tooling, and embedded product surfaces.This role is a great fit if you think of yourself as a frontend engineer first, with enough backend range to move fast without always needing to hand off. Strong React and TypeScript skills are the foundation. Python fluency is a plus, not a prerequisite.What You’ll Do: Own the Frontend ArchitectureLead frontend architecture decisions including component design, state management, performance, and scalability as our platform growsDesign and implement React and TypeScript interfaces for our payments dashboard, reporting surfaces, and embedded product experiencesTranslate complex financial workflows into intuitive, accessible interfacesHelp establish and scale our frontend platform, including shared component libraries, tooling, and patterns the team builds onContribute Across the StackBuild and extend Python APIs that power frontend featuresCollaborate with backend engineers on data contracts, API design, and integration patternsParticipate in system design discussions and bring a product-quality perspective to backend workDrive Frontend StandardsEstablish and maintain frontend best practices, component libraries, and design patterns for a growing teamMentor engineers and conduct code reviews with a focus on quality and consistencyPartner with product and design to refine requirements and push back when scope or UX is unclearSupport Internal ToolingBuild and improve internal tools used by our operations, compliance, and payments teamsMaintain high standards for reliability and usability across both external and internal surfacesWhat We’re Looking For: Senior Fullstack Engineer Requirements5+ years of software engineering experience with significant frontend ownershipStrong production experience in React and TypeScript, these are the primary skills for this roleEnough backend range to build and extend APIs independently, Python experience preferredDemonstrated ability to own features end to end, from data layer to UIExperience working in a collaborative team with shared codebases and code review cultureEducationBachelor's degree in Computer Science, Engineering, or related field preferred, or equivalent practical experienceTechnical SkillsFrontend: React, TypeScript, component architecture, state managementBackend: Python, REST APIs, web frameworksDatabase: Experience with SQL and NoSQL databasesCloud: Google Cloud Platform or similarTooling: Git, CI/CD, testing frameworksPreferred ExperienceData visualization and reporting: experience building charts, dashboards, or analytics surfacesFinancial or fintech products, including dashboards, reporting, or transaction workflowsDesign system or component library ownershipExperience with internal tooling for operations or compliance teamsFamiliarity with domain-driven design or clean architecture patternsWhy This Role MattersDirect Impact: You'll be a core part of a small, high-output engineering team with real ownership over the product experienceFrontend Ownership: Lead the frontend architecture and set the bar for quality across our interfacesComplex Problems: Work on sophisticated payment workflows that few engineers get to buildTeam Building: Establish frontend engineering practices and culture as we scaleFinancial Innovation: Build the interfaces that make financial infrastructure accessible to our clientsWhat We OfferCompetitive compensation with equity in a growing fintech company.Remote-first culture with flexible working arrangementsSmall team, big impact — your work directly supports Astra’s ability to scale responsiblyProfessional growth opportunities in compliance and risk managementMission-driven — build infrastructure that powers financial innovation while meeting the highest regulatory standardsRemote Work and CultureAstra is a remote-first company hiring only within the U.S. We value thoughtful collaboration, clarity, and initiative. We’re proud to be an equal opportunity employer and are committed to building a diverse and inclusive team.How to ApplyWe're looking for engineers who care about product quality as much as technical craft. If you're excited by the challenge of making complex financial systems feel simple to use, and you want real ownership on a small team, we'd love to hear from you.